Study Details
Study Title: Performance Analysis of Centerline and Shoulder Rumble Strips Installed in Combination in Washington State
Authors: D. Olson, M. Sujka, and B. Manchas
Publication Date: APR, 2013
Abstract: WSDOT began installing rumble strips on undivided highways in 1999 as a countermeasure for roadway departure crashes. Installations on the shoulders were intended to reduce run-off-the-road crashes, while centerline rumble strips targeted reductions in cross-centerline crashes. A March 2011 report detailed the performance of centerline rumble strips on Washington State highways. This study:
- Examines the combined effects of centerline and shoulder rumble strips.
- Details the performance of rumble strips on undivided highways in Washington State under a variety of conditions.
- Explores various traffic volumes, geometric conditions, lane and shoulder widths, and driver contributing circumstances.
- Compares various installation scenarios with shoulder and centerline rumble strip installation at different times, as well as simultaneous installation.
Study Citation: Olson, D., M. Sujka, and B. Manchas. "Performance Analysis of Centerline and Shoulder Rumble Strips Installed in Combination in Washington State". Washington State Department of Transportation, Office of Research and Library Services, WA-RD 799.1, April 2013.
Study Report: Download the Study Report Document
CMFs Associated With This Study
Category: Roadway
Countermeasure: Install centerline and shoulder rumble strips
| CMF |
CRF(%) |
Quality |
Crash Type |
Crash Severity |
Roadway Type |
Area Type |
|
0.34
|
66
|
|
Head on,Run off road,Sideswipe |
All |
Not specified |
Rural |
|
0.44
|
56
|
|
Head on,Run off road,Sideswipe |
K,A |
Not specified |
Rural |
|
0.29
|
71
|
|
Head on,Sideswipe |
All |
Not specified |
Rural |
|
0.425
|
57.5
|
|
Head on,Sideswipe |
K,A |
Not specified |
Rural |
|
0.384
|
61.6
|
|
Run off road |
All |
Not specified |
Rural |
|
0.463
|
53.7
|
|
Run off road |
K,A |
Not specified |
Rural |
Countermeasure: Install centerline rumble strips on roads with existing shoulder rumble strips
| CMF |
CRF(%) |
Quality |
Crash Type |
Crash Severity |
Roadway Type |
Area Type |
|
0.554
|
44.6
|
|
Head on,Run off road,Sideswipe |
All |
Not specified |
Rural |
|
0.758
|
24.2
|
|
Head on,Run off road,Sideswipe |
K,A |
Not specified |
Rural |
|
0.353
|
64.7
|
|
Head on,Sideswipe |
All |
Not specified |
Rural |
|
0.758
|
24.2
|
|
Head on,Sideswipe |
K,A |
Not specified |
Rural |
|
1.085
|
-8.5
|
|
Run off road |
All |
Not specified |
Rural |
Category:Shoulder treatments
Countermeasure: Install shoulder rumble strips
| CMF |
CRF(%) |
Quality |
Crash Type |
Crash Severity |
Roadway Type |
Area Type |
|
1.123
|
-12.3
|
|
Head on,Run off road,Sideswipe |
All |
Not specified |
Rural |
|
1.053
|
-5.3
|
|
Head on,Sideswipe |
All |
Not specified |
Rural |
Countermeasure: Install shoulder rumble strips on roads with existing centerline rumble strips
| CMF |
CRF(%) |
Quality |
Crash Type |
Crash Severity |
Roadway Type |
Area Type |
|
0.625
|
37.5
|
|
Head on,Run off road,Sideswipe |
All |
Not specified |
Rural |
|
0.678
|
32.2
|
|
Head on,Run off road,Sideswipe |
K,A |
Not specified |
Rural |
|
0.932
|
6.8
|
|
Head on,Sideswipe |
All |
Not specified |
Rural |
|
0
|
100
|
|
Head on,Sideswipe |
K,A |
Not specified |
Rural |
|
0.53
|
47
|
|
Run off road |
All |
Not specified |
Rural |
|
0.847
|
15.3
|
|
Run off road |
K,A |
Not specified |
Rural |
